Sources · every licence documented

TrialBase DB compiles from 7 active sources: public regulators, research bodies, and structured registries. Each one below carries its own licence and redistribution terms. 7 are marked commercial-use cleared in the manifest and can ship values in the API, MCP tools, and downloadable snapshots; the rest, if any, are listed for provenance or licence review.

Attribution is per-value, not per-dataset. Every field in the API response and every row in a snapshot carries its own source citation, so attribution travels with the value even when a single record blends multiple sources. The live registry is also available at GET https://api.trialbase.dev/v1/sources, and every snapshot ships a LICENSE-NOTES.md with the full per-source licence and attribution text. See /docs/data-dictionary for the provenance model.

Commercial-use cleared sources

7 sources

Sources cleared in the manifest for commercial dataset redistribution and buyer-facing exports.

Source	Jurisdiction	Licence	Redistributed
clinicaltrials-gov U.S. National Library of Medicine - ClinicalTrials.gov Registry-reported study records from the U.S. National Library of Medicine ClinicalTrials.gov service.	United States	US Public Domain	yes
drks German Clinical Trials Register (DRKS), BfArM Current DRKS records registered from 2025 onward or, for older registrations, last updated during 2025; the connector enforces that row-level licence gate and retains the public DRKS record link.	Germany	CC BY 4.0 row-gated slice	yes
eu-ctis EU Clinical Trials Information System (CTIS) Public clinical-trial records from the European Union Clinical Trials Information System.	European Union	EMA reuse (European Medicines Agency)	yes
eudract EU Clinical Trials Register (EudraCT) Public EudraCT study records from the European Union Clinical Trials Register.	European Union	EMA reuse (European Medicines Agency)	yes
health-canada-ctd Health Canada Clinical Trials Database Structured Canadian regulator observations for phase I-III patient drug trials, served as source-qualified enrichment rather than a comprehensive registry.	Canada	Open Government Licence – Canada 2.0	yes
isrctn ISRCTN registry Structured registry contributions published under the ISRCTN Open Access Licence to Post; linked artifact bodies retain separate rights and are excluded.	United Kingdom	ISRCTN Open Access Licence to Post (CC BY/CC0 contribution scope)	yes
pubmed U.S. National Library of Medicine PubMed/MEDLINE citation metadata Citation-only metadata for exact PMID edges asserted by an accepted registry source; abstracts and full text are excluded.	United States	NLM data distribution terms	yes

Related evaluation guides

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